I read a post from Chris Brogan this morning about Dunkin Donuts’ new iPhone app designed to assist the office coffee runner who needs to keep all the orders straight.

Brogan’s blog post and accompanying screen shot exemplified how simple, effective and targeted design could deliver a terrific user experience while solving a common problem: how to collect increasingly complex coffee and breakfast orders from an entire office staff.

I intended to write a post about the effectiveness of simple design so I downloaded the Dunkin Run app, launched it and immediately decided to change the theme of my post.

3 Quick Steps to Devastate Your Clever iPhone App:

1. Compel your user to enter login information that refers back to an unnamed site where the user ID must have already been created.
2. Provide no instruction, hints, links or ability to create a user ID from your application.
3. Ignite burning hatred of your application that cannot be accessed.

I’ve got to wonder… did anyone from Dunkin Donuts’ marketing department ever take a look at this app?

Did no one consider that brand new users – without existing Dunkin Donuts user ID’s – would try the app and hit a brick wall?

Where was the beta testing?

Dunkin Donuts: FAIL.